The latest Field Poll confirmed that voters have yet to focus on the so-called down-ticket races to be decided in the June 2 primary. For the first time, the election will have all candidates appearing on a single ballot.

-- Insurance Commissioner: Quackenbush, the GOP incumbent, leads all challengers combined by more than 2 to 1 -- 38 percent to 15 percent. Democratic Marin County Supervisor Harold Brown and other candidates each get 5 percent, and 37 percent are undecided.

Pollster Mervin Field said that with many incumbents running unopposed within their own party, the effect could be a reduced level of campaigning, "thereby lowering the visibility of these contests even further to the voting public."

The results of the survey are based on a random telephone sampling conducted March 5 to 15 among a representative statewide sample of 602 registered voters, of whom 383 were considered likely to vote in the June 2 primary. The margin of error is plus or minus five percentage points.